Inn At Diamond Cove - Portland

Unique car-free island retreat on Great Diamond Island, a converted military fort

Historic Accommodations & Car-Free Grounds

The Inn At Diamond Cove offers 44 deluxe guest rooms and suites with balconies and wide wooden porches, set within the transformed Fort McKinley barracks. No cars are allowed on the island; guests explore using complimentary bicycle rentals or golf carts. The property also features a heated outdoor swimming pool, a poolside cabana bar, and a hot tub.

Waterfront Dining at Diamond's Edge

Guests dine at Diamond's Edge Restaurant, a waterfront venue overlooking Casco Bay that focuses on local seafood and Maine's culinary heritage. The inn also has two other restaurants on the island, including The Crown Jewel, plus a coffee house on site. A poolside cabana bar serves drinks and snacks during the seasonal months.

Outdoor Recreation & Island Activities

The Inn at Diamond Cove provides kayaking, paddleboarding, tennis courts, a bowling alley, and billiards, all available on the property. Walking trails wind through the island leading to secluded beaches, and guests can borrow bicycles at no extra charge. For history lovers, the Fort McKinley Museum offers insight into the island's past.

Family-Friendly & Pet-Friendly Policies

Families staying at the inn have access to board games, an indoor play area, and kids' outdoor play equipment. The hotel allows pets, making it easier for families to bring their dogs along. Complimentary s'mores and popsicles are offered daily by the staff, and the general manager often arranges special surprises for children.

Location & Ferry Access to Portland

The Inn at Diamond Cove is located on Great Diamond Island in Casco Bay, a 30-minute ferry ride from Portland's Old Port district via Casco Bay Lines. Portland International Jetport Airport is 10 km from the property, and Freeport is 21 km away. The hotel provides a shuttle from the ferry dock to the inn, and water taxis are also available.

• Unique aspect: Car-free island accessed only by ferry or water taxi
• Rooms: 44 suites and rooms with balconies in a converted fort
• Dining: 3 restaurants including waterfront Diamond's Edge
• Recreation: Kayaking, paddleboarding, tennis, bowling, bicycles
• Family features: Kids' play areas, board games, s'mores
• Pet policy: Pets allowed
• Transport: Shuttle from ferry dock, 30 min to Portland